import 'package:flutter/material.dart';

class SingleScrollViewWdiget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    String str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    return Scrollbar(
      child: SingleChildScrollView(
        padding: EdgeInsets.all(16.0),
        child: Center(
          child: Column(
            children: str.split("")
              .map((c) => Text(c, textScaleFactor: 2.0,))
              .toList()
          ),
        )
      ),
    );
  }
  
}